I put my new building in the wrong place. Can I move it?

Sure, it’s easy! Tap the bulldozer button in the bottom menu, choose the Move tool, then drag your building or buildings around where you want them. Once you have your country laid out the way you like, tap the green checkbox in the lower-right to confirm. A building can't be moved in the following cases:
1. It is under construction.
2. It is not opened yet.
3. It has a running contract.